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21.
Sales in a new market generally follow a hockey‐stick pattern: After commercialization, sales are very low for some time before there is a dramatic takeoff in growth. Reported sales takeoffs across products vary widely from a few years to several decades. Prior research identifies new firm entry or price declines as key factors that relate to the timing of a sales takeoff in new markets. However, this literature considers these variables to be exogenous and only finds unilateral effects. In the present article, new firm entry and price declines are modeled as being endogenous. Thus, the simultaneous relationship between price declines and firm entry in the introductory period of new markets when industry sales are negligible is studied. Using a sample of new markets formed in the United States during the last 135 years, strong support for a simultaneous model of price and firm entry is found: Price decreases relate to the competitive pressures associated with firm entry, and, in turn, firm entry is lower in new markets with rapidly falling prices. Furthermore, a key driver of firm entry during the early years of a new market involves the level of patent activity, and a key driver of price decreases is the presence of large firms. In contrast to the recommendations from other research, these results indicate that rapid price declines may further delay sales takeoff in industries by dampening new firm entry. Instead, rapid sales takeoffs in new markets come from encouraging greater innovative activity and the entry of large firms.  相似文献   
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American options are actively traded worldwide on exchanges, thus making their accurate and efficient pricing an important problem. As most financial markets exhibit randomly varying volatility, in this paper we introduce an approximation of an American option price under stochastic volatility models. We achieve this by using the maturity randomization method known as Canadization. The volatility process is characterized by fast and slow-scale fluctuating factors. In particular, we study the case of an American put with a single underlying asset and use perturbative expansion techniques to approximate its price as well as the optimal exercise boundary up to the first order. We then use the approximate optimal exercise boundary formula to price an American put via Monte Carlo. We also develop efficient control variates for our simulation method using martingales resulting from the approximate price formula. A numerical study is conducted to demonstrate that the proposed method performs better than the least squares regression method popular in the financial industry, in typical settings where values of the scaling parameters are small. Further, it is empirically observed that in the regimes where the scaling parameter value is equal to unity, fast and slow-scale approximations are equally accurate.  相似文献   
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This paper demonstrates how institutions for natural resourcemanagement (such as community forestry groups), which appearto be participative, equitable and efficient, can be found lackingon all three counts from a gender perspective. It also examinespossible gender differences in social networks, values and motivations.Although there is little to suggest that women are inherentlymore conservationist than men, the distinctness of women's socialnetworks embodying prior experience of successful cooperation,their higher dependence on these networks (as also on the commonsin general), and their potentially greater group homogeneityrelative to men, could provide an important (and largely ignored)basis for organising sustainable environmental collective action.The paper also outlines the factors that can constrain or facilitatewomen's participation in formal environmental management groups.Illustrative examples are drawn from rural South Asia.  相似文献   
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In this article, we examine the incentives for lenders to steer borrowers into piggyback loan structures to circumvent regulations requiring primary mortgage insurance (PMI) for loans with loan‐to‐value ratios (LTV) above 80%. Our empirical analysis focuses on propensity score‐matched portfolios of piggyback and single‐lien loans having the same combined LTV based on a full set of observed risk characteristics. Our results confirm that mortgages originated with the piggyback structure have much lower ex post default rates and faster prepayment speeds than corresponding PMI loans. We also find a significant causal effect of interstate banking deregulation on the growth of piggybacks in these years, confirming that the ex post performance gap is primarily driven by lender steering on the supply side and not by borrower self‐selection. We then perform a number of tests to explore different origination and execution channels of mortgage steering.  相似文献   
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We examine herding behavior of domestic and foreign investors in the Indonesian stock market. We document that both domestic and foreign investors from a particular brokerage firm tend to herd. The foreign investors exhibit a greater propensity to herd than domestic investors. However, when examining investor trading across brokerage firms, we find only weak evidence of herding by domestic investors and no herding by foreign investors. Our overall findings suggest a strong brokerage firm effect on herding but a weak marketwide effect. Moreover, we find evidence that the strong brokerage effect on herding is likely driven by acting on common information.  相似文献   
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